CBC Discover & Learn

•

Kanava • 22 ohjelmaa

Yhteiskunta ja kulttuuri

Yhteiskunta ja kulttuuri

Päivittäin
Geotieteet

Geotieteet

Viikoittain
Liiketoiminta

Liiketoiminta

Viikoittain
Uutiset

Uutiset

Viikoittain
Historia

Historia

Päivitetty 02.04.2025
Yhteiskunta ja kulttuuri

Yhteiskunta ja kulttuuri

Sarja
Yhteiskunta ja kulttuuri

Yhteiskunta ja kulttuuri

Päivitetty 16.05.2024

19.6.

Great white sharks in hot water, and more…

Some of the oceans biggest, most powerful predators, like certain sharks and tuna, are “mesothermic” or warm-bodied. Running hot allows them to rapidly convert their food to energy and heat, helping them swim faster and hunt in cold waters. But that advantage may become a disadvantage in a warming climate, meaning these fish need to find new ways of cooling off, or face a new threat to their survival. PLUS: Ancient Peruvians traded parrots across deserts and mountainsFrom the archive: David, Jay and Bob, and Quirks & Quarks' origin storySea cucumber 'zombie tissue' straddles the line between life and deathDream engineering may help you solve problems in your sleep

19.6.

•

54 min
1 pv sitten

The 33,000 Horsepower Gamechanger | The Greatest Numbers of All Time

There is nothing random about featuring 33,000 in our number series. It's very powerful. So much so, that the number put millions of horses out of work. Inventor James Watt used “33,000 foot-pounds a minute" to measure the capabilities of a horse when trying to market his new and improved steam engine. The engine was a big success, saving horses from the drudgery of manual labour. Now, a similar process is underway with artificial intelligence — but are we the horses, or the steam engine? *This episode is part of our series, The Greatest Numbers of All Time. For more in the series: Listen to The Curse of 13 Listen to 12 is Sublime Listen to 27 Club Lore Guest in this episode: Stephanie Dick is a historian of mathematics, technology, computing, and AI, and an assistant professor at Simon Fraser University.

1 pv sitten

•

54 min
3 pv sitten

12 is Sublime | The Greatest Numbers of All Time

Complete. Whole. Divine order. That's just the start of what makes the humble dozen extraordinary. It's one of only two numbers ever discovered in mathematics to be “sublime.” Twelve makes a number of appearances in pop culture, in religion, in non-fiction, everything from the 12 days of Christmas to the 12 people it takes to form a criminal jury. Still need convincing of 12’s perfection and indispensability? Check your watch. More episodes in our series, The Greatest Numbers of All Time: Listen to The Curse of 13 Listen to 27 Club Lore Listen to The 33,000 Horsepower Gamechanger Guests in this episode: Glen Van Brummelen is a professor of mathematical sciences at Trinity Western University. Ainsley Hawthorn is a cultural historian and nonfiction writer. She has a PhD in Near Eastern Civilizations from Yale University.

3 pv sitten

•

54 min
2 pv sitten

27 Club Lore | The Greatest Numbers of All Time

Twenty-seven can be a pivotal and tumultuous age. It’s held up as the year of peak performance in many sports and it's also seen as a cursed age for pop and rock stars, exemplified by the so-called 27 Club. Artists like Jimi Hendrix, Janis Joplin, Kurt Cobain and Amy Winehouse, all died at 27. As part of our series, The Greatest Numbers of All Time, IDEAS producer Chris Wodskou makes the case for a number that may not stick out in your mind but is more significant than you think. More episodes in this series: Listen to 12 is Sublime Listen to The Curse of 13 Listen to The 33,000 Horsepower Gamechanger Guests in this podcast: David Awosoga is a PhD student in Statistics at University of Waterloo and sports performance data analyst. Alan Cross is a music historian, broadcaster, and host of The Ongoing History of New Music podcast Dianna Kenny is a professor emerita of psychology and music at University of Sydney and psychotherapist in private practice. Michael Owen is a retired clinical psychologist and author of The 27 Club. Maria Westerstahl is senior lecturer at Karolinska Institutet in Sweden.

2 pv sitten

•

54 min
12.6.

Fossilized squirrel poop full of ancient animals, and more…

Gold miners working in the Yukon regularly find ancient ground squirrel burrows throughout the permafrost, many containing fossilized feces. Researchers analyzing these well-preserved poop piles found they contain some of the oldest DNA ever recovered, dating from 30,000 to 700,000 years ago. Tucked inside were traces of a wide range of ancient animals, including woolly mammoths, grasshoppers, steppe bison, ancient horses, American cheetahs, as well as hundreds of plant species. PLUS: ‘Super-good, ice-making microbes’ may trigger snow and rain, or help freeze foodWe’re a hotbed of mutations, and scientists are leveraging that for our healthGoing out on a limb. Animals regrow body parts, maybe we can tooFrom the archives: Isaac Asimov on human creativity and robots

12.6.

•

54 min
15.6.

The unforgivable crime of being queer in Africa

Homosexuality is illegal in more than half of African countries — a crime punishable by prison sentences. Or in some cases: death. In the past few years, six African countries have made it illegal just to advocate for LGBTQ+ rights. These laws bring up questions of foreign influence, neo-colonialism, and the role the international community could play in nudging human rights on the continent. *This episode originally aired on May 26, 2025. Want another podcast? Ghana and Uganda have some of the harshest laws against LGBTQ+ people in the world. Despite the threats, listen to how podcasters in both these countries are fighting back and reclaiming sexuality.

15.6.

•

54 min
4 pv sitten

The Curse of 13 | The Greatest Numbers of All Time

Has there ever been a number more maligned in western culture than 13? So feared, it's got its own horror-film franchise. So infamously unlucky, a good many of us avoid it en masse. We've just blindly accepted its bad reputation. As part of our series, The Greatest Numbers of All Time, IDEAS explores where our irrational fear and uncomfortable feelings about 13 began. *All five episodes in our number series will be available daily in our feed this week.* Listen to 12 is Sublime Listen to 27 Club Lore Listen to The 33,000 Horsepower Gamechanger Guests in this episode: Stephen Winick is a folk life specialist at the American Folklife Center of the Library of Congress. Barry Markovsky is distinguished professor emeritus of sociology at University of South Carolina. His latest book is Everyday Extraordinary: A Scientist Ponders a Lifetime of Magical, Bizarre, and Paranormal Experiences. Claire Potter is an author of parenting books, including Getting the Little Blighters to Behave and the creator of the online programme Tiny Bites for parents of picky eaters. Rabbi Heschel Greenberg is the founder and director of the Jewish Discovery Center in Buffalo, New York. He has written many books including Tefillin: Judaism's Crown.

4 pv sitten

•

54 min
26.5.

The Billionaire Age Pt 2 | Disney heiress on the dangers of extreme wealth

If you inherited $120 million dollars, could you give away 75 per cent of your wealth? Abigail Disney did. She's an heiress to the Disney fortune. The philanthropist, filmmaker and activist offers an insider perspective into the twisted perils of extreme wealth — on society and the human psyche. Listen to more episodes in this series: Listen to Part One: How did we get here? Listen to Part Three: How oligarchs are taking over the world Guest in this episode: Abigail E. Disney is an award-winning filmmaker, writer, philanthropist, and activist. Her films include The American Dream and Other Fairy Tales, the Emmy Award-winning The Armor of Light — both co-directed with Kathleen Hughes — and Pray the Devil Back to Hell. As a philanthropist and activist, she has championed peacebuilding, gender justice, and systemic cultural change. She is Chair and Co-Founder of Level Forward, an ecosystem of storytellers, entrepreneurs, and social change-makers dedicated to balancing artistic vision, social impact, and stakeholder return. She also founded Peace is Loud, a nonprofit that uses storytelling to advance social movements, and the Daphne Foundation, which supports organizations working for a more equitable, fair, and peaceful New York City. She is currently working on a book about wealth, power, and privilege.

26.5.

•

54 min
12.6.

Podcasts in Uganda and Ghana are reclaiming sex and sexuality

Uganda and Ghana have the harshest laws against LGBTQ+ people in the world. Despite the threats, podcasters in both countries are fighting back by creating a space where people can have sex-positive conversations and gender inclusivity. IDEAS contributor Nana aba Duncan was in Uganda and Ghana to find out how the safety, privacy, and independence of the medium offer a path to understanding, validation and community. In the past few years, six African countries have made it illegal to just advocate for LGBTQ+ rights. What role should the international community play in nudging human rights on the continent? Listen to The unforgivable crime of being queer in Africa.

12.6.

•

54 min
5.6.

Humans and animals love the same sounds, and more...

150 years ago, Charles Darwin noticed that birds and humans were both drawn to bright plumage and elaborate display. He called this interspecies esthetic appreciation a “shared taste for the beautiful.” Now, in a recent study, an interdisciplinary team of scientists built an online game exploring the mating calls of 16 different species and discovered, to their surprise, that humans and animals agree on which sounds are more attractive. PLUS: How the brain can learn to truly multitaskFrom the archives: The Russian space mirror that flashed across Canadian skiesThe Matrix is real: birds, dragonflies and dogs see the world in slow motionCould the next giant particle collider unlock the mysteries of the universe?

5.6.

•

54 min

Expand your knowledge and satisfy your curiosity with podcasts exploring the topics affecting us all — from science, climate, and tech news to history and human nature. Award-winning series that enlighten, entertain and inform.

Tarjoaja

CBC Discover & Learn

Suosituimmat ohjelmat

Suosituimmat jaksot

Tietoja